collection = [
'popuplate','africa','amsterdam','animal','animals','april','architecture','art','australia','baby','barcelona','beach','berlin','birthday',   'black',   'blackandwhite',   'blue',   'boston',   'bw',   'california',   'cameraphone',   'camping',   'canada',   'canon',   'car',   'cat',   'cats',   'chicago',   'china',   'christmas',   'church',   'city',   'clouds',   'color',   'concert',   'day',   'dc',   'dog',   'dogs',   'england',   'europe',   'family',   'festival',   'film',   'florida',   'flower',   'flowers',   'food',   'france',   'friends',   'fun',   'garden',   'geotagged',   'germany',   'girl',   'graduation',   'graffiti',   'green',   'halloween',   'hawaii',   'hiking',   'holiday',   'home',   'honeymoon',   'hongkong',   'house',   'india',   'ireland',   'island',   'italy',   'japan',   'june',   'kids',   'lake',   'landscape',   'light',   'london',   'losangeles',   'macro',   'march',   'may',   'me',   'mexico',   'moblog',   'mountain',   'mountains',   'museum',   'music',   'nature',   'new',   'newyork',   'newyorkcity',   'newzealand',   'night',   'nikon',   'nyc',   'ocean',   'paris',   'park',   'party',   'people',   'photo',   'portrait',   'red',   'river',   'roadtrip',   'rock',   'rome',   'san',   'sanfrancisco',   'school',   'scotland',   'sea',   'seattle',   'show',   'sky',   'snow',   'spain',   'spring',   'street',   'summer',   'sun',   'sunset',   'sydney',   'taiwan',   'texas',   'thailand',   'tokyo',   'toronto',   'travel',   'tree',   'trees',   'trip',   'uk',   'urban',   'usa',   'vacation',   'vancouver',   'washington',   'water',   'wedding',   'white',   'winter',   'yellow',   'york',   'zoo'];